bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave() (Linux Linux)

CVE-2024-47734
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 15 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave() syzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce this[1], one bond device (bond1) has xdpdrv, which increases bpf_master_redirect_enabled_key. Another bond device (bond0) which is unsupported by XDP but its slave (veth3) has xdpgeneric that returns XDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect(). To reduce unnecessary warnings and improve log management, we need to delete the WARN_ON_ONCE() and add ratelimit to the netdev_err(). [1] Steps to reproduce: # Needs tx_xdp with return XDP_TX; ip l add veth0 type veth peer veth1 ip l add veth3 type veth peer veth4 ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default ip l set veth0 master bond1 ip l set bond1 up # Increases bpf_master_redirect_enabled_key ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx ip l set veth3 master bond0 ip l set bond0 up ip l set veth4 up # Triggers WARN_ON_ONCE() from the xdp_master_redirect() ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < c1be35e774f8ed415e01209fddd963c5a74e8e9f ; affected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < 6b64197b4bf1a5703a8b105367baf20f1e627a75 ; affected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < ccd3e6ff05e5236d1b9535f23f3e6622e0bb32b8 ; affected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < 72e2c0825a480e19ee999cee9d018850d38c82b9 ; affected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < 57b5fba55c6f8b1d83312a34bd656166fcd95658 ; affected 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e < 0cbfd45fbcf0cb26d85c981b91c62fe73cdee01c
Linux · Linuxaffected 5.15 ; unaffected 0 < 5.15 ; unaffected 5.15.168 ≤ 5.15.* ; unaffected 6.1.113 ≤ 6.1.* ; unaffected 6.6.54 ≤ 6.6.* ; unaffected 6.10.13 ≤ 6.10.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD